A.Using polar coordinates, evaluate the improper integral of e^(-10(x^2+y^2))dxdy
B. use part A to integrate from negative infinity to positive infinity of e^(-10x^2)dx
2. Homework Equations [/b]
The Attempt at a Solution
i got part A to be pi/10, but for part B i clueless, can someone please give me a hit on how to integrate it!